If you are unable to display correctly math fonts in Netscape under X11 you may try this quick fix, as suggested at http://venus.pfc.mit.edu/tth/Xfonts.notes.

  • Add the following line to your .Xdefaults (or .Xresources): 
    Netscape*documentFonts.charset*adobe-fontspecific:   iso-8859-1
  • $ xrdb .Xdefaults or else restart the X server.
  • Restart Netscape.